January 1930

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Features

Among Our Contributors, January 1930

By C. F. Kettering

Looking Ahead With the Editor, January 1930

Needed: A Bigger Merchant Marine

Hearing Without Ears

Bone-Conduction Equipment to Aid Partially Deaf Persons

By George Barton French

Developments Born of the Speedway

Perfection of Racing Cars and the Terrific Tests They Undergo Teach Many Lessons to the Manufacturer

By William F. Sturm

When Reindeer Roamed the Pyrenees--II

How the Anthropologist Explores the Buried Evidence of the Ancient Past and Reconstructs an Outline of Prehistory

By Ida Treat

Hunting Pocket Planets

How the Astronomical Specialist Applies Scientific Management to the Systematic Search for New Asteroids or Minor Planets

By Henry Norris Russell

An American Front-End-Drive Car

Many Advantages Seen for the Front-End Drive Which Has Recently Been Applied to an American Pleasure Car

The Truth About Aviation Stocks

Basically Sound, the Aircraft Industry Has Suffered Severely From Growing Pains, But Is Now Becoming Stable

Chemical Jingles, We Pay For Ashes and more

Beryllium for Aircraft

"Eskimo Pie" Patent Held Invalid, Motion to Dismiss With Prejudice Denied and more

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

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